By Eagle One from san jose, CA. on 6/19/2008
Pros:
Consistent Output, Easy To Clean, Lightweight
Cons:
Lens might be fragile, Velcro strap
Describe Yourself:
Hobbyist/Enthusiast
Bottom Line:
Yes, I would recommend this to a friend
use it on my canon 300mm F2.8L and 70-200mm f2.8L IS lens at 135 to 200mm setting with adequate coverage